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An image blocks encryption algorithm based on spatiotemporal chaos

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Abstract

In this paper, the CML-based spatiotemporal chaos system is used for image blocks encryption, which gets higher security. The basic idea is to divide the image into blocks, and then use the block numbers as the spatial parameter of CML to iterate the chaos system. Each lattice generates a chaos sequence, and the number of chaos sequence values is equal to the pixels number of each block. The chaos sequences and the former block plaintext codecide the substitution and diffusion of each block. Simulation results show that the performance and security of the proposed encryption system can encrypt the image effectively and resist various typical attacks.

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Authors and Affiliations

  1. Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China

    Xingyuan Wang & Lin Teng

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  1. Xingyuan Wang
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  2. Lin Teng
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Correspondence to Lin Teng.

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Wang, X., Teng, L. An image blocks encryption algorithm based on spatiotemporal chaos. Nonlinear Dyn 67, 365–371 (2012). https://doi.org/10.1007/s11071-011-9984-7

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  • DOI: https://doi.org/10.1007/s11071-011-9984-7

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